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Electroretinograms, retina analysis, behavioural observations and gut content and clearance rate of notothenioid Antarctic fish to determine the importance of visual function in feeding Entry ID: K012_1987_1988_NZ_1 |
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Summary
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Abstract:
The visual function in Pagothenia borchgrevinki was investigated in relation to their feeding by relating feeding with the vertical stratification of zooplankton and then determining their visual sensitivity and the environmental light levels to assess the relative importance of visual and non-visual sensory systems in feeding. Recordings of the electroretinograms (ERG - the electrical response of the retina to imposed light flashes) were made on 30 specimens with the absolute threshold for the ERG, and spectral properties of the response determined and the tucker-fusion rate determined to assess cone thresholds. The response of adult male, adult female and pre adult fish were compared. Retina material was fixed for histological determination of retinal parameters. Behavioural observations were made using an infra-red video system to determine the visual threshold for feeding. Gut clearance rates were determined where on 4 occasions large (>50) samples of fish were caught and subsamples sacrificed at successive 6 hourly intervals to measured gut clearance rate. The visual function in three benthic species of Antarctic fish (Trematomus bernacchii, T. hansoni and T. contronotus) was investigated with ERG's recorded, gut contents analysed and morphological and histological studies of the eyes completed to compare with their dietary preferences to assess the role of vision in feeding.
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| N: -77.85 | S: -77.85 | E: 166.75 | W: 166.75 |
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Temporal Coverage
| Start Date: 1987-10-24 |
| Stop Date: 1987-11-22 |
Location Keywords
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OCEAN
> SOUTHERN OCEAN
CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
Science Keywords
| AGRICULTURE >ANIMAL SCIENCE >ANIMAL PHYSIOLOGY AND BIOCHEMISTRY [Definition] |
| BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH >RAY-FINNED FISHES |
| BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH >RAY-FINNED FISHES >PERCH-LIKE FISHES |
ISO Topic Category
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BIOTA
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Platform
| LABORATORY [Information] |
| FIELD INVESTIGATION [Information] |
Keywords
| Notothenioid |
| feeding behaviour |
| retina |
Data Set Progress
| COMPLETE |
Data Center
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Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
[Information]
Data Center URL: http://www.antarcticanz.govt.nz/
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Personnel
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JOHN
MACDONALD Role: INVESTIGATOR Phone: +64 9 423 9387 Email: ja.macdonald at xtra.co.nz Contact Address: Omiha Farm City: Wellsford Postal Code: 0972 Country: NEW ZEALAND |
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JOHN
MONTGOMERY Role: INVESTIGATOR Phone: +64 9 373 7599 xt 83611 Fax: +64 9 422 6113 Email: j.montgomery at auckland.ac.nz Contact Address: Leigh Marine Laboratory University of Auckland Private Bag 92019 Auckland Mail Centre City: Auckland Postal Code: 1142 Country: NEW ZEALAND |
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RUFUS
WELLS Role: INVESTIGATOR Phone: +64 9 373 7599 xt 87206 Fax: +64 9 373 7415 Email: r.wells at auckland.ac.nz Contact Address: School of Biological Sciences University of Auckland Private Bag 92019 Auckland Mail Centre City: Auckland Postal Code: 1142 Country: NEW ZEALAND |
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CEISHA
POIROT Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: c.poirot at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand |
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SHULAMIT
GORDON Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: s.gordon at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand |
Publications/References
Pankhurst, N.W. Montgomery, J.C. Visual function in four Antarctic nototheniid fishes. Journal of experimental biology 142: 311-324, 1989.
Pankhurst, N.W. Montgomery, J.C. Ontogeny of vision in the Antarctic fish Pagothenia borchgrevinki (Nototheniidae). Polar biology 10(6): 419-422, 1990.
Pankhurst, N.W. Growth and reproduction of the Antarctic nototheniid fish Pagothenia borchgrevinki. Polar biology 10(5): 387-391, 1990.
Macdonald, J.A. Montgomery, J.C. Wells, R.M.G. The physiology of McMurdo Sound fishes: current New Zealand research. Comparative biochemistry and physiology 90B(3): 567-578, 1988.
Montgomery, J.C. And Pankhurst, N.W. 1997. Sensory biology. In: Randall, D.J. And Farrell, A.P. (Eds.) Deep sea fish. Fish Physiology Series, Vol. 16. Academic Press, San Diego, pp. 325-349.
Montgomery, J. Macdonald, J. Evolution of sensory systems: a comparison of Antarctic and deep-sea ichthyofauna. In: Fishes of Antarctica: a biological overview.Di Prisco G. Pisano E. Clarke A. (eds) Milano, New York: Springer-Verlag. 1998. pp.329-338 ISBN 8847000289
Pankhurst, N.W. Montgomery, J.C. Ontogeny of vision in the Antarctic fish Pagothenia borchgrevinki (Nototheniidae). Polar biology 10(6): 419-422, 1990.
Pankhurst, N.W. Growth and reproduction of the Antarctic nototheniid fish Pagothenia borchgrevinki. Polar biology 10(5): 387-391, 1990.
Macdonald, J.A. Montgomery, J.C. Wells, R.M.G. The physiology of McMurdo Sound fishes: current New Zealand research. Comparative biochemistry and physiology 90B(3): 567-578, 1988.
Montgomery, J.C. And Pankhurst, N.W. 1997. Sensory biology. In: Randall, D.J. And Farrell, A.P. (Eds.) Deep sea fish. Fish Physiology Series, Vol. 16. Academic Press, San Diego, pp. 325-349.
Montgomery, J. Macdonald, J. Evolution of sensory systems: a comparison of Antarctic and deep-sea ichthyofauna. In: Fishes of Antarctica: a biological overview.Di Prisco G. Pisano E. Clarke A. (eds) Milano, New York: Springer-Verlag. 1998. pp.329-338 ISBN 8847000289
Creation and Review Dates
DIF Creation Date:
2009-01-08
Last DIF Revision Date:
2009-01-09
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